diff --git a/Caesar Cipher.py b/caesar_cipher.py
similarity index 100%
rename from Caesar Cipher.py
rename to caesar_cipher.py
diff --git a/Simple Substitution Cipher.py b/simple_substitution_cipher.py
similarity index 100%
rename from Simple Substitution Cipher.py
rename to simple_substitution_cipher.py
diff --git a/Transposition Cipher.py b/transposition_cipher.py
similarity index 100%
rename from Transposition Cipher.py
rename to transposition_cipher.py